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Storm Isaac to be downgraded

Tropical storm Isaac is forecast to become a tropical depression by the National Hurricane Centre later today. The Mayor of New Orleans has enforced a dawn-to-dusk curfew as Isaac continues to lash the city.

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Rescue efforts continue around New Orleans

Tropical Storm Isaac continued to lash New Orleans with heavy rain today despite being downgraded, as residents in cars and homes were stranded exactly seven years after Hurricane Katrina devastated the city.

Rescuers in boats tried to reach people stranded around the city. There have been no reports of casualties.

In New Orleans, the newly-fortified levee system appeared to be holding, though power lines were downed and debris littered the streets, prompting officials to impose a dusk-to-dawn curfew.

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